I was surfing the web looking footprints of coin cell battery holders to have ideas on how to design mine, and found this one here:
From an answer on that page:
The reason for the rectangular slots is to serve as thermal reliefs, similar to what is done for plated-through-holes. Without the slots, you would have to heat up the entire circle of copper before any solder would melt. And even then, the solder could flow over the entire area.
So the forced question is:
Is it possible to “recreate” the pad within a pad in KiCAD?
Any other design tips for footprints of battery holders?